Patents by Inventor Anthony Renau

Anthony Renau has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9455335
    Abstract: A method of forming a fin field effect transistor (finFET) device includes forming a fin structure on a substrate, the substrate comprising a semiconductor material and forming a replacement gate cavity comprising an exposed portion of the fin structure and a sidewall portion adjacent the exposed portion, wherein the exposed portion of the fin structure defines a channel region. The method further includes performing at least one implant into the exposed portion of the fin structure.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: September 27, 2016
    Assignee: Varian Semiconductor Equiment Associates, Inc
    Inventors: Anthony Renau, Hans-Joachim L. Gossmann
  • Patent number: 9425027
    Abstract: Methods of affecting a material's properties through the implantation of ions, such as by using a plasma processing apparatus with a plasma sheath modifier. In this way, properties such as resistance to chemicals, adhesiveness, hydrophobicity, and hydrophilicity, may be affected. These methods can be applied to a variety of technologies. In some cases, ion implantation is used in the manufacture of printer heads to reduce clogging by increasing the materials hydrophobicity. In other embodiments, MEMS and NEMS devices are produced using ion implantation to change the properties of fluid channels and other structures. In addition, ion implantation can be used to affect a material's resistance to chemicals, such as acids.
    Type: Grant
    Filed: May 14, 2012
    Date of Patent: August 23, 2016
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Ludovic Godet, Christopher Hatem, Deepak Ramappa, Xianfeng Lu, Anthony Renau, Patrick Martin
  • Publication number: 20160233162
    Abstract: A method for fabricating a multilayer structure includes providing a mask on a device stack disposed on the substrate, the device stack comprising a first plurality of layers composed of a first layer type and a second layer type; directing first ions along a first direction forming a first non-zero angle of incidence with respect to a normal to a plane of the substrate, wherein a first sidewall is formed having a sidewall angle forming a first non-zero angle of inclination with respect to the normal, the first sidewall comprising a second plurality of layers from at least a portion of the first plurality of layers and composed of the first layer type and second layer type; and etching the second plurality of layers using a first selective etch wherein the first layer type is selectively etched with respect to the second layer type.
    Type: Application
    Filed: April 18, 2016
    Publication date: August 11, 2016
    Inventors: Anthony Renau, Christopher Hatem
  • Publication number: 20160189935
    Abstract: A processing apparatus may include a plasma source coupled to a plasma chamber to generate a plasma in the plasma chamber, an extraction plate having an aperture disposed along a side of the plasma chamber; a deflection electrode disposed proximate the aperture and configured to define a pair of plasma menisci when the plasma is present in the plasma chamber; and a deflection electrode power supply to apply a bias voltage to the deflection electrode with respect to the plasma, wherein a first bias voltage applied to the deflection electrode is configured to generate a first angle of incidence for ions extracted through the aperture from the plasma, and a second bias voltage applied to the deflection electrode is configured to generate a second angle of incidence of ions extracted through the aperture from the plasma, the second angle of incidence being different from the first angle of incidence.
    Type: Application
    Filed: March 9, 2016
    Publication date: June 30, 2016
    Inventors: Costel Biloiu, Nini Munoz, Ludovic Godet, Anthony Renau
  • Patent number: 9337040
    Abstract: A method for fabricating a multilayer structure includes providing a mask on a device stack disposed on the substrate, the device stack comprising a first plurality of layers composed of a first layer type and a second layer type; directing first ions along a first direction forming a first non-zero angle of incidence with respect to a normal to a plane of the substrate, wherein a first sidewall is formed having a sidewall angle forming a first non-zero angle of inclination with respect to the normal, the first sidewall comprising a second plurality of layers from at least a portion of the first plurality of layers and composed of the first layer type and second layer type; and etching the second plurality of layers using a first selective etch wherein the first layer type is selectively etched with respect to the second layer type.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: May 10, 2016
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Anthony Renau, Christopher Hatem
  • Patent number: 9293301
    Abstract: A processing apparatus may include a plasma source coupled to a plasma chamber to generate a plasma in the plasma chamber, an extraction plate having an aperture disposed along a side of the plasma chamber; a deflection electrode disposed proximate the aperture and configured to define a pair of plasma menisci when the plasma is present in the plasma chamber; and a deflection electrode power supply to apply a bias voltage to the deflection electrode with respect to the plasma, wherein a first bias voltage applied to the deflection electrode is configured to generate a first angle of incidence for ions extracted through the aperture from the plasma, and a second bias voltage applied to the deflection electrode is configured to generate a second angle of incidence of ions extracted through the aperture from the plasma, the second angle of incidence being different from the first angle of incidence.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: March 22, 2016
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Costel Biloiu, Nini Munoz, Ludovic Godet, Anthony Renau
  • Patent number: 9236257
    Abstract: A method for processing a substrate includes providing a set of patterned structures separated by a first gap on the substrate and directing first implanting ions to the substrate at a first ion energy, where the first implanting ions are effective to impact the substrate in regions defined by the first gap. The method also includes directing depositing ions to the substrate where the second ions are effective to deposit material on at least a portion of the set of patterned structures to form expanded patterned structures, where the expanded patterned structures are characterized by a second gap smaller than the first gap. The method further includes directing second implanting ions to the substrate at a second ion energy, where the second implanting ions effective to impact the substrate in regions defined by the second gap, the second ion energy comprising a higher ion energy than the first ion energy.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: January 12, 2016
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Christopher R. Hatem, Anthony Renau, John J. Hautala, Ludovic Godet
  • Publication number: 20160005607
    Abstract: A method may include providing a substrate having a surface that defines a substrate plane and a substrate feature that extends from the substrate plane; directing an ion beam comprising angled ions to the substrate at a non-zero angle with respect to a perpendicular to the substrate plane, wherein a first portion of the substrate feature is exposed to the ion beam and wherein a second portion of the substrate feature is not exposed to the ion beam; directing molecules of a molecular species to the substrate wherein the molecules of the molecular species cover the substrate feature; and providing a second species to react with the molecular species, wherein selective growth of a layer comprising the molecular species and the second species takes place such that a first thickness of the layer grown on the first portion is different from a second thickness grown on the second portion.
    Type: Application
    Filed: July 21, 2014
    Publication date: January 7, 2016
    Inventors: Simon Russell, Thomas R. Omstead, Anthony Renau
  • Patent number: 9076625
    Abstract: An apparatus and method for producing electrons in a plasma flood gun is disclosed. The apparatus includes an indirectly heated cathode (IHC) which is contained within a pre-fabricated cartridge. This cartridge can be readily replaced in a plasma flood gun. In addition, the use of an IHC reduces the amount of contaminants that are injected into the workpiece or wafer.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: July 7, 2015
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Craig Chaney, Leo Klos, Anthony Renau, Alexander Perel
  • Publication number: 20150176116
    Abstract: Techniques for diamond nucleation control for thin film processing are disclosed. In one particular embodiment, the techniques may be realized as a method for generating a plasma having a plurality of ions; depositing a plurality of diamond nucleation centers on a substrate with the ions in the plasma using an extraction plate having at least one gap, wherein the plasma ions pass through the at least one gap in the extraction plate to generate a focused ion beam to deposit the plurality of diamond nucleation centers; and controlling the growth of a continuous diamond film from the diamond nucleation centers on the substrate by controlling at least one of a temperature around the substrate, a temperature of the plasma, a pressure around the substrate, and a concentration of the ions in the plasma.
    Type: Application
    Filed: March 9, 2015
    Publication date: June 25, 2015
    Inventors: Ludovic GODET, Xianfeng LU, Anthony RENAU
  • Publication number: 20150179409
    Abstract: A processing apparatus may include a plasma source coupled to a plasma chamber to generate a plasma in the plasma chamber, an extraction plate having an aperture disposed along a side of the plasma chamber; a deflection electrode disposed proximate the aperture and configured to define a pair of plasma menisci when the plasma is present in the plasma chamber; and a deflection electrode power supply to apply a bias voltage to the deflection electrode with respect to the plasma, wherein a first bias voltage applied to the deflection electrode is configured to generate a first angle of incidence for ions extracted through the aperture from the plasma, and a second bias voltage applied to the deflection electrode is configured to generate a second angle of incidence of ions extracted through the aperture from the plasma, the second angle of incidence being different from the first angle of incidence.
    Type: Application
    Filed: December 23, 2013
    Publication date: June 25, 2015
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Costel Biloiu, Nini Munoz, Ludovic Godet, Anthony Renau
  • Publication number: 20150132907
    Abstract: A method of forming a fin field effect transistor (finFET) device includes forming a fin structure on a substrate, the substrate comprising a semiconductor material and forming a replacement gate cavity comprising an exposed portion of the fin structure and a sidewall portion adjacent the exposed portion, wherein the exposed portion of the fin structure defines a channel region. The method further includes performing at least one implant into the exposed portion of the fin structure.
    Type: Application
    Filed: November 14, 2013
    Publication date: May 14, 2015
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Anthony Renau, Hans-Joachim L. Gossmann
  • Patent number: 9024282
    Abstract: An apparatus for hydrogen and helium implantation is disclosed. The apparatus includes a plasma source system to generate helium ions and hydrogen molecular ions comprising H3+ ions. The apparatus further includes a substrate chamber adjacent the plasma source system and in communication with the plasma source system via one or more apertures, an extraction system to extract the hydrogen molecular ions and helium ions from the plasma source system, and an acceleration system to accelerate extracted helium and hydrogen molecular ions to a predetermined energy and direct the extracted helium ions and hydrogen molecular ions to a substrate.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: May 5, 2015
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Svetlana B. Radovanov, Ludovic Godet, Anthony Renau, Xianfeng Lu
  • Patent number: 8937004
    Abstract: A plasma processing apparatus comprises a plasma source configured to produce a plasma in a plasma chamber, such that the plasma contains ions for implantation into a workpiece. The apparatus also includes a focusing plate arrangement having an aperture arrangement configured to modify a shape of a plasma sheath of the plasma proximate the focusing plate such that ions exiting an aperture of the aperture arrangement define focused ions. The apparatus further includes a processing chamber containing a workpiece spaced from the focusing plate such that a stationary implant region of the focused ions at the workpiece is substantially narrower that the aperture. The apparatus is configured to create a plurality of patterned areas in the workpiece by scanning the workpiece during ion implantation.
    Type: Grant
    Filed: April 19, 2013
    Date of Patent: January 20, 2015
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Anthony Renau, Ludovic Godet, Timothy J. Miller, Joseph C. Olson, Vikram Singh, James Buonodono, Deepak A. Ramappa, Russell J. Low, Atul Gupta, Kevin M. Daniels
  • Patent number: 8716682
    Abstract: An ion implantation system may comprise a plasma source for providing a plasma and a workpiece holder arranged to receive a bias with respect to the plasma to attract ions across a plasma sheath toward the substrate. The system may also include an extraction plate arrangement comprising a multiplicity of different apertures each arranged to provide an ion beam having ions distributed over a range of angles of incidence on the workpiece, wherein a first ion beam extracted from a first aperture has a first beam profile that differs from a second ion beam extracted from a second aperture.
    Type: Grant
    Filed: April 4, 2011
    Date of Patent: May 6, 2014
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Anthony Renau, Ludovic Godet, Timothy J. Miller, Joseph C. Olson
  • Patent number: 8698107
    Abstract: A time-of-flight (TOF) ion sensor system for monitoring an angular distribution of ion species having an ion energy and incident on a substrate includes a drift tube wherein the ion sensor system is configured to vary an angle of the drift tube with respect to a plane of the substrate. The drift tube may have a first end configured to receive a pulse of ions from the ion species wherein heavier ions and lighter ions of the pulse of ions arrive in packets at a second end of the drift tube. An ion detector may be disposed at the second end of the ion sensor, wherein the ion detector is configured to detect the packets of ions derived from the pulse of ions and corresponding to respective different ion masses.
    Type: Grant
    Filed: January 10, 2011
    Date of Patent: April 15, 2014
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Ludovic Godet, Christopher J. Leavitt, Bon-Woong Koo, Anthony Renau
  • Publication number: 20140097752
    Abstract: A plasma ion source including a plasma chamber, gas inlets, an RF antenna, an RF window, an extraction plate, a window shield, and a chamber liner. The RF window may be positioned intermediate the RF antenna and the plasma chamber. The window shield may be disposed intermediate the RF widow and the interior of the plasma chamber and the chamber liner may cover the interior surface of the plasma chamber. During operation of the ion source, the window shield sustains ionic bombardment that would otherwise be sustained by the RF window. Fewer impurity ions are therefore released into the plasma chamber. Simultaneously, additional dopant atoms are released from the window shield into the plasma chamber. Ionic bombardment is also sustained by the chamber liner, which also contributes a quantity of dopant atoms to the plasma chamber. Dopant ion production within the plasma chamber is thereby increased while impurities are minimized.
    Type: Application
    Filed: October 9, 2012
    Publication date: April 10, 2014
    Applicant: VARIAN SEMICONDUCTOR EQUIPMENT ASSOCIATES, INC.
    Inventors: Costel Biloui, Timonthy J. Miller, Bon-Woong Koo, Anthony Renau
  • Patent number: 8679356
    Abstract: A method of patterning a substrate, comprises patterning a photoresist layer disposed on the substrate using imprint lithography and etching exposed portions of a hard mask layer disposed between the patterned photoresist layer and the substrate. The method may also comprise implanting ions into a magnetic layer in the substrate while the etched hard mask layer is disposed thereon.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: March 25, 2014
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Alexander C. Kontos, Frank Sinclair, Anthony Renau
  • Patent number: 8664098
    Abstract: A plasma processing apparatus includes a process chamber, a platen for supporting a workpiece, a source configured to generate a plasma in the process chamber, and an insulating modifier. The insulating modifier has a gap, and a gap plane, where the gap plane is defined by portions of the insulating modifier closest to the sheath and proximate the gap. A gap angle is defined as the angle between the gap plane and a plane defined by the front surface of the workpiece. Additionally, a method of having ions strike a workpiece is disclosed, where the range of incident angles of the ions striking the workpiece includes a center angle and an angular distribution, and where the use of the insulating modifier creates a center angle that is not perpendicular to the workpiece.
    Type: Grant
    Filed: January 19, 2012
    Date of Patent: March 4, 2014
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Ludovic Godet, Timothy J. Miller, Svetlana B. Radovanov, Anthony Renau, Vikram Singh
  • Patent number: 8461030
    Abstract: A plasma processing apparatus comprises a plasma source configured to produce a plasma in a plasma chamber, such that the plasma contains ions for implantation into a workpiece. The apparatus also includes a focusing plate arrangement having an aperture arrangement configured to modify a shape of a plasma sheath of the plasma proximate the focusing plate such that ions exiting an aperture of the aperture arrangement define focused ions. The apparatus further includes a processing chamber containing a workpiece spaced from the focusing plate such that a stationary implant region of the focused ions at the workpiece is substantially narrower that the aperture. The apparatus is configured to create a plurality of patterned areas in the workpiece by scanning the workpiece during ion implantation.
    Type: Grant
    Filed: November 16, 2010
    Date of Patent: June 11, 2013
    Assignee: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Anthony Renau, Ludovic Godet, Timothy J. Miller, Joseph C. Olson, Vikram Singh, James Buonodono, Deepak A. Ramappa, Russell J. Low, Atul Gupta, Kevin M. Daniels